EDIT 5 June 2017: apparently this laptop uses the eDP display interface meaning it IS possible to put a different display into the laptop. Here is a reddit post with what display to buy: https://www.reddit.com/r/chromeos/commen...
all credits to joe who answered this but i thought I'd edit my answer because it is the accepted one.
Typically screens for laptops are made for that specific model, and unless your screen is somehow defective you cannot get a better quality one for your laptop. A antireflective screen protector may help though.
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